TY - JOUR PY - 2013// TI - The fallacy of thresholds used in defining response and remission in depression rating scales JO - International journal of methods in psychiatric research A1 - Naudet, Florian A1 - Millet, Bruno A1 - Michel Reymann, Jean A1 - Falissard, Bruno SP - 469 EP - 473 VL - 23 IS - 4 N2 - Response and remission are determined by the proportion of people who fall below a threshold score on depression rating scales. This calculation implies a possibility of false positives (FP) and false negatives (FN) depending on sensitivity and specificity of the threshold used, but also on response and remission rates. A simulation illustrates the methodological consequences of this phenomenon in a comparative trial where response and remission rates differ between groups: the probability of being misclassified differs between groups, and measures of association (relative risk and odds ratio) are biased. Alternatives are proposed to cope with this misclassification bias. Copyright © 2013 John Wiley & Sons, Ltd.

Language: en

LA - en SN - 1049-8931 UR - http://dx.doi.org/10.1002/mpr.1393 ID - ref1 ER -